Glow-lamp fixture.



T. E. MURRAYL G. K. jESSUP. GLQW LAMP FIXTURE.

APPLICATON HLEU MAR. 28 1914' En y m Patented Apr. 18. 31915.

fenomeen. iraniana ann esonera ii'. Jessen, or New Yoan, im tf1; sain :lessor assisteren. 'ro sario Meitner-t f stew-LAMP ringtones.

alessia Specication of Letters Patenti* reputation inegi nimh as, 191e'. 'serial No. 827,359]

rilie invention is aglow-laihp fixture, and` comprises a solid block Iof insulating material, toone end of which is secured'the threaded shell for the reception ofvithe'lainp',

and at the other end are located4 the circuit terminals. lWithin a recess in the block is a switch inechanisni interposed between said circuit terminals and said shell.

The invention consists in theconstruction more particularly pointed out in the claims.

ln the accompanying drawings-Figure 1 v is a cross section 'of our socket on the` line a' ot Fig. 4l, Fig. 2 is an elevation, Fig. 3

is a top View showing the construction of thevv circuit terminals, and Fig. 4tis a section on the line a, s of Fig. l,

'lhe socket comprises a cylindrical body J i of insulating material, to which is secured the usual threadedinetal sleeve K for the recaption of a glow-lamp. On the upper sidel oil body J is a circi'ilar recess, in which is disposed an arcwshaped metal plate L which is electrically connected to sleeve K. by two bolts M which pass through the body J the usual disks of insulating material interposed between said body and sleeve K, and enter the nntal et' sleeve l. Also in said recess is :i plate N secured by screw O, which is bent to pass tliroi. socket and, to

n V a.

:rtend below the top surface opening in said body. 1d openi is 4the metal plate l? I ves thc pasticci end oi the sii-ank ntf t dish @y within sleeve lil. f. shan'i are insulated, as usual, by disks of insulating niaw i the sleeve and a bushing of inate ial inclosingK said shank. The et plate l? are upwardly turned, one iifiiig "ertical slot lt to receive the li shaft El, and the other end ci. "l also receiving' said shaft. -hatt carries the metal switch cani U, 'which bears against the bent over leaf spring lf electrically connected' to plate l. The leading-in wire l-l is secured' to plate N by i a notch in the edge ot thev hinein Sww. @The eating-ia wife iis secure to plate L bybindi'n-g" screwX'. V

u When the switch keyis'turlie'olfinl the lpositionlshown 4 in Fig. 1,"circiii't' is established through cam U, 'from plate N',:liti-tikkiel Q. When the switch key 4is turnedin the posi'- tio'n shown inFig. Q, contact isinterrupted between cain U and 'plate-N.' z

The Vconi-'i'ection's onthesotiket for vthe 'leads ing-1n wires, narnely, :plates Ng, are ,on 4 the top of the socket, so' that Jolie'lei'idin'g''-in' wires-may' pass directly from said plates to and through the sleeve Y, thusv avoiding any openings for said leading-in wires in the sides of the socket or the` necessity of carry ing such'wires between socket and shell in order to make the connections. So also when the parts of theshell are separated, said platesL: and N on top oi' the socket are exposed and at once accessible, thus permittingthe leading-in wires 'to be readily connected. g

We claim;

A..` glow-lanip fixture, comprising a block of insulatingmaterial having a transverse recess, a threaded shell lamp socket securedupon Ione end of said block, a central contact insaid threaded shell, circuit ter.

minals on the opposite end of said block, circuit connections between said circuit terminals respectively and said shelland said central Contact therein, and a switch mechanisrn in said recess and interposed in the connection between a circuit terminal and said central contact.

2; A glow-lamp fixture, comprising a block of insulating material, having atrans verse recess extending through it, a threaded -shell larrip socket secured upon one end of said block, a central contact in said shell, circuit terminals on the opposite end ol said block, a connection extending from one of said terminals through the material of said.

3.1%. glow-lamp fixture, comprising a block of insulating material, having a transverse recess extending throughit, two circuitivterminals on one end ot said block, one-otA rateneediana is', lois.

ics

said terminals enterin said recess, a threaded shell lamp socket on t e opposite end of said block7 a central Contact in said shell, a conducting'rod extending through the material of said block and connecting the other of said terminals to the shellof said socket, a

said leaf spring. i

`il. A glow-lamp fixture, comprising a Ablock of insulating material, having a transverse opening extending through it, two cir-- cuit terminals on one end of said block, one of said circuit terminals being a bifurcated plate having its loop received in a notch in f Contact to said bracket, a :f

rthe material. of said block .honi sai metal bracket in 'the bottoni of i' threaded shell lamp socket, :z ce in said shell, a. connection Wtem" the material of said olor said bracket, a connection the other of said circ-iut terminals. and

switch mechanism dispos-:d in said vom and interposed between said spring and s bifurcated plate.

In testimony whereof we have alxcd our signatures in presence of two witnesses.

@non te 'a Gaone-fsa ir Witnesses;

GERTRUQE P. PORTER, MAY T. MoGAnni'. 

